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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-04-21 13:39:09 +0300 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2017-04-21 17:58:45 +0200 |
| commit | 3026050179a3a9a6f5c892c414b5e36ecf092081 (patch) | |
| tree | 58717781486b999bcade01632288a373a3885a14 /drivers/hsi | |
| parent | c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 (diff) | |
| download | linux-3026050179a3a9a6f5c892c414b5e36ecf092081.tar.gz linux-3026050179a3a9a6f5c892c414b5e36ecf092081.tar.bz2 linux-3026050179a3a9a6f5c892c414b5e36ecf092081.zip | |
HSI: ssi_protocol: double free in ssip_pn_xmit()
If skb_pad() fails then it frees skb and we don't need to free it again
at the end of the function.
Fixes: dc7bf5d7 ("HSI: Introduce driver for SSI Protocol")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/hsi')
| -rw-r--r-- | drivers/hsi/clients/ssi_protocol.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/hsi/clients/ssi_protocol.c b/drivers/hsi/clients/ssi_protocol.c index 7ef819680acd..26b05106f0d3 100644 --- a/drivers/hsi/clients/ssi_protocol.c +++ b/drivers/hsi/clients/ssi_protocol.c @@ -980,7 +980,7 @@ static int ssip_pn_xmit(struct sk_buff *skb, struct net_device *dev) goto drop; /* Pad to 32-bits - FIXME: Revisit*/ if ((skb->len & 3) && skb_pad(skb, 4 - (skb->len & 3))) - goto drop; + goto inc_dropped; /* * Modem sends Phonet messages over SSI with its own endianess... @@ -1032,8 +1032,9 @@ static int ssip_pn_xmit(struct sk_buff *skb, struct net_device *dev) drop2: hsi_free_msg(msg); drop: - dev->stats.tx_dropped++; dev_kfree_skb(skb); +inc_dropped: + dev->stats.tx_dropped++; return 0; } |